It's hard to believe, but both children in the painting are boys. Laszlo painted numerous paintings of his young sons with long curls. There is even a portrait of his son, Steven, with a bow in his hair. Apparently, it was not uncommon to keep boys' hair long or even dress them in robes and lace, particularly for portraits. I have a photo of my late father in law dressed in a tiny gown sitting (pretty as a pearl) among his older brothers. Go figure.
Here is a link to the painting information.
If you poke around on the website that link points to, (jssgallery.org), you'll find lots of Laszlo portraits. Mainly royalty, but also some family and friends. I find them refreshingly uncomplicated.
Great thread!